charts/.github/workflows/index-monitor.yml

name: '[Index] Monitor remote index.yaml'

on:
  schedule:
    # Every 10 minutes
    - cron: '*/10 * * * *'

# Remove all permissions by default
permissions: {}

jobs:
  integrity-check:
    name: Compare the index.yaml checksums remote and locally
    runs-on: ubuntu-latest
    permissions:
      contents: read
    outputs:
      result: ${{ steps.integrity-check.outputs.result }}
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
        with:
          ref: 'index'
      - name: Check index integrity
        id: integrity-check
        run: |
          status="fail"
          attempts=0
          # We want to check for consistent failures
          # To do so, we will look for 3 consecutive failures with a 30 seconds wait
          # A single success is enough to pass
          while [[ "${status}" != "ok" && $attempts -lt 3 ]]; do
            # Check the index.yaml integrity
            REMOTE_MD5=($(curl -Ls https://charts.bitnami.com/bitnami/index.yaml | md5sum))
            REPOSITORY_MD5=($(md5sum bitnami/index.yaml))
            # Compare the index.yaml checksums remote and locally
            if [[ "${REPOSITORY_MD5[0]}" == "${REMOTE_MD5[0]}" ]]; then
              status='ok'
            else
              attempts=$((attempts+1))
              echo "Integrity check failed. Remote checksum '${REMOTE_MD5[0]}' does not match expected '${REPOSITORY_MD5[0]}'";
              # Refresh the 'index' branch in case it was updated
              git fetch origin index
              git reset --hard origin/index
              # Wait 30 seconds
              sleep 30
            fi
          done
          echo "result=${status}" >> $GITHUB_OUTPUT
      - name: Show messages
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea
        with:
          script: |
            if ("${{ steps.integrity-check.outputs.result }}" != "ok" ) {
              core.setFailed("Integrity check failed");
            } else {
              core.info("Integrity check succeeded")
            }
  validation-check:
    name: Validate the helm repository can be added and updated
    runs-on: ubuntu-latest
    permissions:
      contents: read
    outputs:
      result: ${{ steps.validation-check.outputs.result }}
    steps:
      - name: Install helm
        run: |
          HELM_TARBALL="helm-v3.8.1-linux-amd64.tar.gz"
          curl -SsLfO "https://get.helm.sh/${HELM_TARBALL}" && sudo tar xf "$HELM_TARBALL" --strip-components 1 -C /usr/local/bin
      - name: Validate helm repository
        id: validation-check
        run: |
          repo="https://charts.bitnami.com/bitnami"
          status="fail"
          attempts=0
          # We want to check for consistent failures
          # To do so, we will look for 3 consecutive failures with a 30 seconds wait
          # A single success is enough to pass
          while [[ "${status}" != "ok" && $attempts -lt 3 ]]; do
            # Validates the helm repository can be added and updated
            if helm repo add bitnami "${repo}" && helm repo update bitnami; then
              status="ok"
            else
              attempts=$((attempts+1))
              echo "Failed to pull charts from helm repository '${repo}'"
              # If present, remove repository to allow retries
              if helm repo list | grep -q bitnami; then
                helm repo remove bitnami
              fi
              # Wait 30 seconds
              sleep 30
            fi
          done
          echo "result=${status}" >> $GITHUB_OUTPUT
      - name: Show messages
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea
        with:
          script: |
            if ("${{ steps.validation-check.outputs.result }}" != "ok" ) {
              core.setFailed("Validation check failed");
            } else {
              core.info("Validation check succeeded")
            }
  upload:
    name: Re-upload index.yaml
    needs: [validation-check, integrity-check]
    if: ${{ always() && (needs.validation-check.outputs.result != 'ok' || needs.integrity-check.outputs.result != 'ok') }}
    uses: bitnami/charts/.github/workflows/sync-chart-cloudflare-index.yml@index
    secrets: inherit
    permissions:
      contents: read
  notify:
    name: Send notification
    needs: [validation-check, integrity-check]
    if: ${{ always() && (needs.validation-check.outputs.result != 'ok' || needs.integrity-check.outputs.result != 'ok') }}
    uses: bitnami/charts/.github/workflows/gchat-notification.yml@main
    with:
      workflow: ${{ github.workflow }}
      job-url: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
    secrets: inherit